add token to body of `acceptInvite` action.

services/web/app/coffee/Features/Collaborators/CollaboratorsInviteController.coffee

@@ -55,9 +55,10 @@ module.exports = CollaboratorsInviteController =
 	acceptInvite: (req, res, next) ->
 		projectId = req.params.Project_id
 		inviteId = req.params.inviteId
+		{token} = req.body
 		currentUser = req.session.user
 		logger.log {projectId, inviteId}, "accepting invite"
-		CollaboratorsInviteHandler.acceptInvite projectId, inviteId, currentUser, (err) ->
+		CollaboratorsInviteHandler.acceptInvite projectId, inviteId, token, currentUser, (err) ->
 			if err?
 				logger.err {projectId, inviteId}, "error getting invite by token"
 				return next(err)

services/web/test/UnitTests/coffee/Collaborators/CollaboratorsInviteControllerTests.coffee

@@ -239,9 +239,11 @@ describe "CollaboratorsInviteController", ->
 				invite_id: @invite_id = "thuseoautoh"
 			@req.session =
 				user: _id: @current_user_id = "current-user-id"
+			@req.body =
+				token: "thsueothaueotauahsuet"
 			@res.render = sinon.stub()
 			@res.sendStatus = sinon.stub()
-			@CollaboratorsInviteHandler.acceptInvite = sinon.stub().callsArgWith(3, null)
+			@CollaboratorsInviteHandler.acceptInvite = sinon.stub().callsArgWith(4, null)
 			@callback = sinon.stub()
 			@next = sinon.stub()
 
@@ -261,7 +263,7 @@ describe "CollaboratorsInviteController", ->
 
 			beforeEach ->
 				@err = new Error('woops')
-				@CollaboratorsInviteHandler.acceptInvite = sinon.stub().callsArgWith(3, @err)
+				@CollaboratorsInviteHandler.acceptInvite = sinon.stub().callsArgWith(4, @err)
 				@CollaboratorsInviteController.acceptInvite @req, @res, @next
 
 			it 'should not produce a 201 response', ->